EP0155043A1 - Unité de commande automatique pour commander la boîte de vitesses d'un véhicule - Google Patents

Unité de commande automatique pour commander la boîte de vitesses d'un véhicule Download PDF

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Publication number
EP0155043A1
EP0155043A1 EP85200278A EP85200278A EP0155043A1 EP 0155043 A1 EP0155043 A1 EP 0155043A1 EP 85200278 A EP85200278 A EP 85200278A EP 85200278 A EP85200278 A EP 85200278A EP 0155043 A1 EP0155043 A1 EP 0155043A1
Authority
EP
European Patent Office
Prior art keywords
speed
clutch
gear
engine
gearbox
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP85200278A
Other languages
German (de)
English (en)
Inventor
Silvio Sala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Italdesign Giugiaro SpA
Original Assignee
SIRP Studi Industriali Realizzazione Prototipi SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SIRP Studi Industriali Realizzazione Prototipi SpA filed Critical SIRP Studi Industriali Realizzazione Prototipi SpA
Publication of EP0155043A1 publication Critical patent/EP0155043A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G9/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously
    • G05G9/08—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlled members being actuated successively by progressive movement of the controlling member
    • G05G9/085—Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, e.g. selectively, simultaneously the controlled members being actuated successively by progressive movement of the controlling member the controlling member acting on a set of cams or slot cams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/02—Clutches
    • B60W2510/0208—Clutch engagement state, e.g. engaged or disengaged
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2510/00—Input parameters relating to a particular sub-units
    • B60W2510/06—Combustion engines, Gas turbines
    • B60W2510/0638—Engine speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/10—Accelerator pedal position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2540/00—Input parameters relating to occupants
    • B60W2540/12—Brake pedal position
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/26—Generation or transmission of movements for final actuating mechanisms
    • F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
    • F16H61/32—Electric motors actuators or related electrical control means therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
    • F16H63/08—Multiple final output mechanisms being moved by a single common final actuating mechanism
    • F16H63/16—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism
    • F16H63/18—Multiple final output mechanisms being moved by a single common final actuating mechanism the final output mechanisms being successively actuated by progressive movement of the final actuating mechanism the final actuating mechanism comprising cams
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
    • F16H63/40—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism comprising signals other than signals for actuating the final output mechanisms
    • F16H63/50—Signals to an engine or motor
    • F16H63/502—Signals to an engine or motor for smoothing gear shifts

Definitions

  • the invention relates to an automatic control unit for controlling the gearbox of a vehicle.
  • the invention relates to an automatic control unit for controlling the gearbox of a vehicle, of the type in which, while respecting the sequences of a normal gear shifting, these latter are actuated by electronic means connected to a microprocessor.
  • the known devices for the automatic control of the gearbox require to provide, downstream of the engine, an hydraulic torque converter and an epicyclical unit with three or four forward gears, with oil bath clutch for locking the gear.
  • An object of the invention is to provide an automatic control unit for controlling a mechanical gearbox, which will reduce the controls in driving the vehicle, thus reducing the consumption of fuel.
  • Another object of the invention is to provide an automatic gearbox which will attain the same high efficiency of a manual type gearbox, thus avoiding the use of low efficiency means, such as the hydraulic torque converter peculiar to the known automatic gearboxes,whichwillenable also to program various driving manners, including the drive with low consumptions which result in being lower even than those obtainable with a manual control.
  • a further object of the invention is to propose an automatic control unit adapted to be applied on a conventional manual gearbox without having to make considerable structural modifications to it, so as to obtain low manufacturing costs.
  • the proposed automatic gearbox unit utilizes electric controls which require additional power sources, inasmuch as said controls exploit the feeding means existing on the vehicle.
  • the invention proposes to provide an automatic control unit for controlling the gearbox of a vehicle applied to a clash gear or constant mesh gearbox of conventional type and in which the selection of the neutral position, the reverse movement position and the first speed position is controlled manually, characterized in that the rods of the forks which carry out the throw in and the throw out of the speeds higher than the first speed are operated by motor means which actuate suitably shaped guides along which the said rods slide following combined ways to sequentially actuate the said forks; said motor means, in their turn, being actuated by electronic processor means, to which there are further connected: sensor means sensing the position of the gear lever, the speeds higher than the first speed which are thrown in by said motor, the speeds in output from the engine and on the driving wheels, the clutch opening and closure position, respectively, the position of the foot brake and accelerator pedals, as well as means actuating the opening and the closure of the clutch and the feeding member which feeds the fuel to the engine; said processor means being
  • Fig. 2 Visible in Fig. 2 is an arm 23 connected to the gearbox lever 10 by means of linkages (not shown), and to a fork 22 having prongs 24 supported thereon which operate a sleeve 24a provided with an external toothing and an inner groove and slidable on the hub 26; all this is shown in Fig. 3 in which the gearbox of the vehicle is represented.
  • the wheel 25 receives the motion from the lever 79 through the free wheel 80 indispensable for allowing the relative motion between the wheel 79 and the wheel 25 at the speeds higher than the first speed, the wheel 25 and the sleeve 24a being always in mesh for said speeds.
  • sleeve 24a represented with full lines is in the neutral position; by manually acting on the lever 10 the fork 22 is traversed in the direction of the arrow I and makes mesh the inner groove of the sleeve 24 a with the wheel 25, thereby rigidly connecting this latter to the wheel 26 and engaging the first speed.
  • each rod which are opposite to those provided with the respective forks are slidably guided in respective circumferential grooves 35,36 and 37 of a drum 38 shown in axial cross-section in Fig.4 and in development in Fig. 5.
  • the parts 72, 73 and 74 of the rods 28, 29 and 30 slide within slots 75, 76 and 77 visible in Fig. 5 and formed on a reaction plate 71, fixed on the gear case 81.
  • the drum 38 mounted on bearings 39, is rotated by the motor M c (Fig. 1) whose shaft 40 supports a gear 78 on which the gears 41 are engaged which, in their turn, mesh with toothed portions 42 of the inner surface of the drum 38.
  • Shown in Fig. 3 are the sleeves 31, 43 and 44 in which the forks supported by the rods 28, 29 and 30, respectively, are engaged in a known manner.
  • FIGs 6 and 7 show the clutch operating unit which, as shown in Fig. 1, is controlled by the motor M whose shaft 45 supports a gear 46 which meshes with a denction gear 46 keyed on an axle 48 toothed at 49, with which the rack portion 50 of a rod 51 pivoted to the linkage 52 (Fig.1) controlling the clutch 14 engages.
  • a freewheel 53 Also mounted on the driving shaft 45 is a freewheel 53 whose construction will be described later.
  • Fig. 7 Diagrammatically shown in Fig. 7 is also the support 82 connecting the gear case and the engine.
  • Fig. 8 shows the accelerator control unit formed by a lever 54 pivoted at 55 and controlled by the electromagnet 16 (Fig. 1) through the rod 56.
  • the lever 54 rotating, acts on a pivot 57 of the lever 58 which is also pivoted at 55 and one end of which is connected to the throttle 13 through a transmission member 59, while the other end is pivotally connected at 60 to a jacket 61 slidable outside a tube 65; interposed between the two elements is a preloaded spring 67 which renders resilient the gearbox control.
  • the guide bushing 6 operated by the cable 64 of the accelerator; in addition, disposed between the tube 65 and a guide stem 63 guiding the cable 64 is a return spring 66 for the accelerator 12.
  • the starting of the engine can be carried out only when the gearbox lever is in the neutral position, and the sensor S a allows starting the engine when the clutch is closed, this condition being obtained by means of the processor 21 which actuates the motor M f which, through the kinematic mechanism 45 + 50, traverses the rod 51 in the direction of the arrow B, and accordingly lever 52 closes the clutch 14.
  • one of the sensord Sma (forward movement)or S rm (reverse movement) will close and will send current pulses to the motor M f to close the clutch 14, i.e. to traverse the rod 51 in the direction of the arrow B.
  • the unit In passing from the speed I controlled in an entirely manual manner, as described above, to the higher speeds (II, III, IV and V sequentially) the unit acts automatically without requiring any further manual intervention.
  • the processor 21 carries out the follwing passages sequentially:
  • the rod 56 of the electromagnet E am is traversed in the direction of the arrow C in Fig.8, thus allowing the rod 59 to reach the position shown in this Figure, which corresponds to the maximum closure of the throttle 13, i.e. to the slow speed of the engine.
  • This slow speed shifting condition determined by the electromagnet occurs also when the accelerator pedal is pressed thanks to the action of the preloaded spring 67 which opposes the pull of the accelerator cable 64.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
EP85200278A 1984-03-16 1985-02-28 Unité de commande automatique pour commander la boîte de vitesses d'un véhicule Withdrawn EP0155043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8467247A IT1208325B (it) 1984-03-16 1984-03-16 Gruppo di comando automatico del cambio di un veicolo
IT6724784 1984-03-16

Publications (1)

Publication Number Publication Date
EP0155043A1 true EP0155043A1 (fr) 1985-09-18

Family

ID=11300823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85200278A Withdrawn EP0155043A1 (fr) 1984-03-16 1985-02-28 Unité de commande automatique pour commander la boîte de vitesses d'un véhicule

Country Status (2)

Country Link
EP (1) EP0155043A1 (fr)
IT (1) IT1208325B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005735A1 (fr) * 1987-01-30 1988-08-11 Rodolfo Santovetti Systeme electronique servocommande de changement de vitesse destine a rendre automatique le changement de vitesse
EP0310387A2 (fr) * 1987-09-29 1989-04-05 Isuzu Motors Limited Dispositif de commande pour transmission
EP0350812A2 (fr) * 1988-07-15 1990-01-17 Attila Dipl.-Ing. Madocsay Dispositif pour changer automatiquement des vitesses dans une boîte de vitesses mécanique multi-étagée d'un véhicule à moteur
EP0373273A1 (fr) * 1988-12-16 1990-06-20 Isuzu Motors Limited Dispositif de commande de transmission
EP0547007A1 (fr) * 1991-12-11 1993-06-16 FIAT AUTO S.p.A. Dispositif de commande d'une boîte de vitesse d'un véhicule automobile
FR2736594A1 (fr) * 1995-07-12 1997-01-17 Luk Getriebe Systeme Gmbh Dispositif d'actionnement notamment pour vehicules
FR2742387A1 (fr) * 1995-12-18 1997-06-20 Luk Getriebe Systeme Gmbh Dispositif d'actionnement d'un systeme de transmission d'un couple de rotation
EP1114263A1 (fr) * 1998-09-15 2001-07-11 Daimlerchrysler Corporation Commande de changement de vitesse d'une transmission automatique electromecanique
FR2803890A1 (fr) * 2000-01-14 2001-07-20 Renault Barillet de commande pour boite de vitesses et boite de vitesses equipees d'un tel barillet
FR2816386A1 (fr) * 2000-11-07 2002-05-10 Luk Lamellen & Kupplungsbau Mecanisme d'entrainement pour boite de vitesses
ES2507290A1 (es) * 2013-04-11 2014-10-14 Product & Process Development, S. L. Sistema de cambio de marcha automático para vehículos de combustión interna

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835646A (fr) * 1937-10-15 1938-12-27 Servomoteur pour changement de vitesse des véhicules automobiles
CH204422A (fr) * 1938-04-21 1939-04-30 Vuilleumier Eric Dispositif de changement de vitesse.
US2523783A (en) * 1939-10-16 1950-09-26 Gen Motors Corp Turbodrive control
US3876028A (en) * 1971-04-16 1975-04-08 Aisin Seiki System for controlling automatic transmission of vehicle
FR2268997A1 (en) * 1974-04-27 1975-11-21 Flender A F & Co Remote control crane gear change - uses motor control apparatus with electrical interlocking effects necessary for gear changes
GB2018917A (en) * 1978-04-17 1979-10-24 Nissan Motor Autobatic gear shifting method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR835646A (fr) * 1937-10-15 1938-12-27 Servomoteur pour changement de vitesse des véhicules automobiles
CH204422A (fr) * 1938-04-21 1939-04-30 Vuilleumier Eric Dispositif de changement de vitesse.
US2523783A (en) * 1939-10-16 1950-09-26 Gen Motors Corp Turbodrive control
US3876028A (en) * 1971-04-16 1975-04-08 Aisin Seiki System for controlling automatic transmission of vehicle
FR2268997A1 (en) * 1974-04-27 1975-11-21 Flender A F & Co Remote control crane gear change - uses motor control apparatus with electrical interlocking effects necessary for gear changes
GB2018917A (en) * 1978-04-17 1979-10-24 Nissan Motor Autobatic gear shifting method

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005735A1 (fr) * 1987-01-30 1988-08-11 Rodolfo Santovetti Systeme electronique servocommande de changement de vitesse destine a rendre automatique le changement de vitesse
EP0310387A2 (fr) * 1987-09-29 1989-04-05 Isuzu Motors Limited Dispositif de commande pour transmission
EP0310387A3 (en) * 1987-09-29 1989-09-27 Isuzu Motors Limited Transmission control apparatus
US4911031A (en) * 1987-09-29 1990-03-27 Isuzo Motors Limited Transmission control apparatus
EP0350812A2 (fr) * 1988-07-15 1990-01-17 Attila Dipl.-Ing. Madocsay Dispositif pour changer automatiquement des vitesses dans une boîte de vitesses mécanique multi-étagée d'un véhicule à moteur
EP0350812A3 (fr) * 1988-07-15 1991-03-27 Attila Dipl.-Ing. Madocsay Dispositif pour changer automatiquement des vitesses dans une boíte de vitesses mécanique multi-étagée d'un véhicule à moteur
EP0373273A1 (fr) * 1988-12-16 1990-06-20 Isuzu Motors Limited Dispositif de commande de transmission
EP0547007A1 (fr) * 1991-12-11 1993-06-16 FIAT AUTO S.p.A. Dispositif de commande d'une boîte de vitesse d'un véhicule automobile
GB2308874B (en) * 1995-07-12 1999-12-08 Luk Getriebe Systeme Gmbh Actuating arrangement
CN1094098C (zh) * 1995-07-12 2002-11-13 卢克驱动***有限公司 操作装置
WO1997002963A3 (fr) * 1995-07-12 1997-03-13 Luk Getriebe Systeme Gmbh Dispositif d'actionnement d'un embrayage et d'une transmission
GB2308874A (en) * 1995-07-12 1997-07-09 Luk Getriebe Systeme Gmbh Clutch and gear actuation device
FR2736594A1 (fr) * 1995-07-12 1997-01-17 Luk Getriebe Systeme Gmbh Dispositif d'actionnement notamment pour vehicules
WO1997002963A2 (fr) * 1995-07-12 1997-01-30 Luk Getriebe-Systeme Gmbh Dispositif d'actionnement d'un embrayage et d'une transmission
DE19655083B4 (de) * 1995-07-12 2010-12-23 Luk Gs Verwaltungs Kg Betätigungsvorrichtung
FR2742387A1 (fr) * 1995-12-18 1997-06-20 Luk Getriebe Systeme Gmbh Dispositif d'actionnement d'un systeme de transmission d'un couple de rotation
GB2308412A (en) * 1995-12-18 1997-06-25 Luk Getriebe Systeme Gmbh Control of the engagement of a vehicle clutch in response to gear lever opera tion
GB2308412B (en) * 1995-12-18 2000-08-16 Luk Getriebe Systeme Gmbh Method of and apparatus for actuating an adjustable torque transmitting system in the power train of a motor vehicle
EP1114263A1 (fr) * 1998-09-15 2001-07-11 Daimlerchrysler Corporation Commande de changement de vitesse d'une transmission automatique electromecanique
EP1114263A4 (fr) * 1998-09-15 2002-12-04 Daimler Chrysler Corp Commande de changement de vitesse d'une transmission automatique electromecanique
FR2803890A1 (fr) * 2000-01-14 2001-07-20 Renault Barillet de commande pour boite de vitesses et boite de vitesses equipees d'un tel barillet
EP1118803A3 (fr) * 2000-01-14 2001-08-08 Renault Barrillet de commande pour boíte de vitesses et boíte de vitesses équipée d'un tel barillet
EP1118803A2 (fr) * 2000-01-14 2001-07-25 Renault Barrillet de commande pour boíte de vitesses et boíte de vitesses équipée d'un tel barillet
WO2002038988A1 (fr) * 2000-11-07 2002-05-16 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Actionneur a moteur electrique pour boite de vitesses
FR2816386A1 (fr) * 2000-11-07 2002-05-10 Luk Lamellen & Kupplungsbau Mecanisme d'entrainement pour boite de vitesses
US6893371B2 (en) 2000-11-07 2005-05-17 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Transmission actuator driven by an electric motor
ES2507290A1 (es) * 2013-04-11 2014-10-14 Product & Process Development, S. L. Sistema de cambio de marcha automático para vehículos de combustión interna
WO2014167164A1 (fr) * 2013-04-11 2014-10-16 Product & Process Development, S. L. Système de changement de vitesse automatique pour des véhicules à combustion interne

Also Published As

Publication number Publication date
IT1208325B (it) 1989-06-12
IT8467247A0 (it) 1984-03-16

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Effective date: 19860307

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Inventor name: SALA, SILVIO